In what way was communication by telegraph an improvement over communication by mail carriage?
a. the telegraph allowed instant communication over long distances.
b. the telegraph used morse code.
c. the telegraph let messages be delivered in days instead of weeks.
d. the telegraph carried the sounds of people’s voices.

The telegraph was once a revolutionary innovation in the way the mail was sent. It represents the instant transmission of textual or symbolic messages over long distances. The original ways of transmitting a message remotely without carrying the message were visual semaphores as initial forms of telegraphy. Later the telegraph was significantly improved by the invention of electric telegraphs which, using the symbolic code, could transmit the encrypted message over long distances.

The answer is: A.

explanation:

hitler's  "rise" can be considered to have ended in march 1933, after the reichstag adopted the enabling act of 1933 in that month. president paul von hindenburg had already appointedhitler  as chancellor on 30 january 1933 after a series of parliamentary elections and associated backroom intrigues.